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Super Precision Angular Contact Ball Bearings 71905 CEGA/HCP4A

Super Precision Angular Contact Ball Bearings 71905 CEGA/HCP4A

The 71905 CEGA/HCP4A is a super precision angular contact ball bearing with a compact size of 25mm by 42mm by 9mm. Made from chrome steel and ceramic balls, it offers smooth operation and durability.

With a 15° contact angle, it handles both radial and axial loads efficiently. It can spin at speeds up to 83,000 RPM, making it suitable for high-speed applications.

The open design and phenolic cage ensure easy maintenance and long service life. Its extra-light preload (Class A) provides precise performance in demanding setups.

Ideal for machine tools or spindle drives where accuracy is key. The bearing is interchangeable with SKF models and comes lubricated for immediate use. Works in temperatures from -30°C to 110°C.

Weighing just 0.036kg, it’s lightweight yet robust. Can be paired in back-to-back, face-to-face, or tandem arrangements for versatile applications.

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Product Parameters

  • Part Number 71905 CEGA/HCP4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 25 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 42 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 9 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 4.762 mm
  • Ball Qty 16
  • Contact Angle 15°
  • Tolerance Class P4A
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement No
  • Number Of Bearings In Matched Set 2
  • Universal Matching Bearing Yes, back-to-back (<>), face-to-face (><) or tandem (>>)
  • Preload Extra light / Class A
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Ceramic
  • Cage Material Phenolic
  • Dynamic Radial Load 1186 lbf
  • Static Radial Load 630 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 83000 rpm
  • Weight 0.036 kg
  • Price（$） 116.424
Super Precision Angular Contact Ball Bearings 71905 CEGA/HCP4A dimension drawing
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Features

How Is 71905 CEGA/HCP4A Bearing Engineered for Reliability?

71905 CEGA/HCP4A Bearing features a 15° contact angle, optimised for angular contact loads and high-speed performance.
The ceramic balls and chrome steel rings enhance durability while reducing friction for smoother operation.

With a dynamic radial load capacity of 1186 lbf, it handles demanding applications with ease.
Its phenolic cage ensures stable ball alignment, even at speeds up to 83,000 rpm.

The P4A tolerance class guarantees precision, making it suitable for high-accuracy machinery.
Lubrication is pre-applied, ensuring ready-to-use convenience and extended service life.

Application

Key Fields for 71905 CEGA/HCP4A Bearing
71905 CEGA/HCP4A Bearing is commonly used in high-speed machine tools, where its precision angular contact design ensures accurate spindle rotation. The ceramic balls reduce friction, making it ideal for applications demanding smooth operation.

In robotics, 71905 CEGA/HCP4A Bearing supports articulated arms, providing stability during rapid movements. Its extra light preload helps maintain precision in automated assembly lines.

For medical imaging devices, 71905 CEGA/HCP4A Bearing’s phenolic cage offers quiet performance, essential for sensitive equipment. The P4A tolerance class guarantees reliability in critical diagnostic applications.

Automotive enthusiasts appreciate 71905 CEGA/HCP4A Bearing in performance gearboxes, where its high-speed capability enhances shifting smoothness. The open design allows for easy lubrication, extending service life.

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